2nd Edition

ISBN: 9780134605500

Author: ETKINA

Publisher: PEARSON CO

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Chapter 25, Problem 34P

25.6 Polarization and light reflection

* BIO Spider polarized light navigation The gnaphosid spider Drassodes cupreus has evolved a pair of lensless eyes for detecting polarized light. Each eye is sensitive to polarized light in perpendicular directions. Near sunset, the spider leaves its nest in search of prey. Light from overhead is partly polarized and indicates the direction the spider is moving. After the hunt, the spider uses the polarized light to return to its nest. Suppose that the spider orients its head so that one of these two eyes detects light of intensity 800 W/m 2 and the other eye detects zero light intensity. What intensities do the two eyes detect if the spider now rotates its head 20 ° from the previous orientation?

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Chapter 25, Problem 33P

Chapter 25, Problem 35P

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Example Two charges, one with +10 μC of charge, and another with - 7.0 μC of charge are placed in line with each other and held at a fixed distance of 0.45 m. Where can you put a 3rd charge of +5 μC, so that the net force on the 3rd charge is zero?

* Coulomb's Law Example Three charges are positioned as seen below. Charge 1 is +2.0 μC and charge 2 is +8.0μC, and charge 3 is - 6.0MC. What is the magnitude and the direction of the force on charge 2 due to charges 1 and 3? 93 kq92 F == 2 r13 = 0.090m 91 r12 = 0.12m 92 Coulomb's Constant: k = 8.99x10+9 Nm²/C² ✓

Make sure to draw a Free Body Diagram as well

Chapter 25 Solutions

EBK COLLEGE PHYSICS

Ch. 25 - Review Question 25.1 What is the difference...Ch. 25 - Review Question 25.2 What needs to happen to...Ch. 25 - Review Question 25.3 How are GPS and radar...Ch. 25 - Review Question 25.4 If the frequency of one...Ch. 25 - Review Question 25.5 Electromagnetic waves are...Ch. 25 - Review Question 25.6 Explain why polarizing...Ch. 25 - Multiple Choice Questions The fact that light can...Ch. 25 - Multiple Choice Questions What does a beam of...Ch. 25 - Multiple Choice Questions What does Faraday's law...Ch. 25 - Multiple Choice Questions 4. Maxwell's hypothesis...

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